Description
HAProxy through 2.0.2 allows attackers to cause a denial of service (ha_panic) via vectors related to htx_manage_client_side_cookies in proto_htx.c.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP1 | haproxy | 2.0.5+git0.d905f49a-8.3.5 | SUSE-SU-2019:3001-1 |
| SLES 15 | haproxy | 2.0.5+git0.d905f49a-3.12.6 | SUSE-SU-2019:3002-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | haproxy | 2.4.4+git0.acb1d0bea-1.2 | openSUSE-SU-2024:10839-1 |
| openSUSE Leap 15.1 | haproxy | 2.0.5+git0.d905f49a-lp151.2.3.1 | openSUSE-SU-2019:2556-1 |
| openSUSE Leap 15.0 | haproxy | 2.0.5+git0.d905f49a-lp150.2.13.1 | openSUSE-SU-2019:2555-1 |
Advisories 6
- WID-SEC-2024-0054 IBM Security Verify Access: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 16, 2026
- openSUSE-SU-2024:10839-1 haproxy-2.4.4+git0.acb1d0bea-1.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3001-1 Security update for haproxy SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:3002-1 Security update for haproxy SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:2556-1 Security update for haproxy SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:2555-1 Security update for haproxy SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://github.com/haproxy/haproxy/issues/181
- 109352 vdb-entry
- openSUSE-SU-2019:2556 vendor-advisory
- openSUSE-SU-2019:2555 vendor-advisory